JPS6167051A - Dust protecting mechanism of image forming device - Google Patents
Dust protecting mechanism of image forming deviceInfo
- Publication number
- JPS6167051A JPS6167051A JP59189056A JP18905684A JPS6167051A JP S6167051 A JPS6167051 A JP S6167051A JP 59189056 A JP59189056 A JP 59189056A JP 18905684 A JP18905684 A JP 18905684A JP S6167051 A JPS6167051 A JP S6167051A
- Authority
- JP
- Japan
- Prior art keywords
- image
- side plate
- belt
- internal
- covers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/221—Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
- G03G15/04081—Exposure from behind the photoconductive surface
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/206—Conducting air through the machine, e.g. for cooling, filtering, removing gases like ozone
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Engineering & Computer Science (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Control Or Security For Electrophotography (AREA)
- Fax Reproducing Arrangements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
(発明の利用分野)
本発明は例えば電子計算機、画像読取り装置等から演算
出力ないし読取り出力される電気信号化された画像情報
を、視認できる画像としてそのまま再現表示する画像表
示装置、あるいは再現表示後、必要に応じて画像を転写
材に転写する複写機等の画像形成装置において、像担持
ベルトの内面あるいはレンズやミラー等の光学部品に現
像剤やホコリ等の異物が付着するのを防ぐ防塵機構に関
するものである。Detailed Description of the Invention (Field of Application of the Invention) The present invention relates to an image that reproduces and displays as a visually recognizable image image information converted into an electrical signal that is calculated or read out from, for example, an electronic computer, an image reading device, etc. In a display device or an image forming device such as a copying machine that transfers an image to a transfer material as necessary after reproduction, foreign matter such as developer or dust may be present on the inner surface of the image bearing belt or on optical components such as lenses and mirrors. This relates to a dustproof mechanism that prevents dust from adhering.
(従来技術)
一般に上記の如き無端状の像担持ベルトを有する画像表
示装置や画像形成装置はこの像担持ベルトを複数本のロ
ーラに架設して回動させるという構造を有する。この様
な像担持ベルトは、トナーをその表面に付着して装置本
体内を回動するため、像担持ベルト上のトナーが装置内
部に飛散し易い構造となっている。このようなトナーの
飛散が装置本体内で発生すると装置内部の各所がトナー
で汚染され様々な問題を発生する。(Prior Art) Generally, an image display device or an image forming device having an endless image carrying belt as described above has a structure in which the image carrying belt is mounted on a plurality of rollers and rotated. Such an image carrying belt has toner attached to its surface and rotates within the main body of the apparatus, so that the toner on the image carrying belt is easily scattered inside the apparatus. When such scattering of toner occurs within the apparatus main body, various parts inside the apparatus are contaminated with toner, causing various problems.
例えば、透明なベルト基体を用い像担持ベルトの内側か
ら画像露光を行なう画像表示装置ではベルト内面に異物
が付着すると正常な画像形成を行なうことができない。For example, in an image display device that uses a transparent belt base and performs image exposure from the inside of the image bearing belt, normal image formation cannot be performed if foreign matter adheres to the inner surface of the belt.
また、ミラーやレンズ等の光学部品にトナーが付着した
場合は、装置本来の機能に致命的な影響を及ぼす、この
様にトナーは粉体であり、複雑な機構部の奥深くまで進
入し、一旦奥深くまで入り込んだトナーを清掃するのは
容易ではない。In addition, if toner adheres to optical parts such as mirrors and lenses, it will have a fatal effect on the original functions of the device.As the toner is powder, it will penetrate deep into the complex mechanical parts and once It is not easy to clean toner that has penetrated deeply.
特に上記の如く像担持ベルトを用いる装置においては、
トナーがベルト裏面に付着してしまうとベルトの裏面は
ローラと当接する面であるため、トナーがローラとベル
ト間にはさまれ、ローラ表面やベルトa面に固着し正常
な画像形成を阻害し、また像担持ベルトを傷めたりする
。更に像担持ベルト裏面にトナーが付着した状態でベル
トの回動を続けると、無端状の像担持ベルトに囲まれた
空間内でトナーが舞い上り、この空間内の各部に上記の
問題を発生させる。一般に像担持ベルトの内面はベルト
を′?を置から取りはずさなければ清掃し難く清掃作業
が困難である。Particularly in devices using an image bearing belt as described above,
If toner adheres to the back side of the belt, since the back side of the belt is the surface that comes into contact with the roller, the toner will be caught between the roller and the belt, and will stick to the roller surface and belt a side, inhibiting normal image formation. , and may damage the image carrying belt. Furthermore, if the belt continues to rotate with toner adhered to the back surface of the image carrying belt, the toner will fly up in the space surrounded by the endless image carrying belt, causing the above-mentioned problems in various parts of this space. . Generally, the inner surface of the image carrying belt is a belt. The cleaning work is difficult because it is difficult to clean without removing it from the place.
この不都合を解決するため前記光学部品等を密閉空間内
に配置してチリやホコリあるいはトナーなどの異物の・
発生源から分離する方法がある。しかし完全に密閉する
のは実際上不可能であるし、また装置の構成上あるいは
組立性、コスト等の理由で密閉構造を採用できない場合
がある。In order to solve this problem, the optical components are placed in a closed space to prevent dirt, dust, toner, and other foreign matter.
There are ways to separate it from the source. However, it is practically impossible to completely seal the device, and there are cases where a sealed structure cannot be adopted due to the structure of the device, ease of assembly, cost, or other reasons.
(発明の目的)
本発明は以上の点に鑑みなされたもので、その目的は像
担持ベルトの内側にトナーなどの異物が侵入するのを防
止することによりミラーやレンズ等の光学部品に異物が
付着するのを防ぐ防塵手段を提供することにある。(Object of the Invention) The present invention has been made in view of the above points, and its purpose is to prevent foreign matter such as toner from entering the inside of the image bearing belt, thereby preventing foreign matter from entering optical components such as mirrors and lenses. The objective is to provide a dust-proofing means that prevents dust from adhering.
(発明の概要)
本発明による画像表示装置の特徴とするところは、上記
目的を達成するため、無端状感光ベルトを複数個のロー
ラに移動自在にかけまわし、該感光ベルト上に静電写真
法によるトナー像を形成するようにしてなる画像表示装
置において、前記無端状感光ベルトの内側に少なくとも
一面が該無端状感光ベルトの周回軌道に沿う仕切板と側
板により密閉空間を形成し、該密閉空間内の気圧を前記
無端状感光ベルト外面の気圧よりも高くした点にある。(Summary of the Invention) The image display device according to the present invention is characterized in that, in order to achieve the above object, an endless photosensitive belt is movably wound around a plurality of rollers, and electrostatic photography is performed on the photosensitive belt. In an image display device configured to form a toner image, a closed space is formed inside the endless photosensitive belt by a partition plate and a side plate, at least one side of which is along the orbit of the endless photosensitive belt, and a closed space is formed inside the closed space. The point is that the air pressure is higher than the air pressure on the outer surface of the endless photosensitive belt.
(発明の実施例) 以下1本発明を一実施例に従って説明する。(Example of the invention) The present invention will be explained below according to one embodiment.
w44図は本発明を適用した画像表示装置の外観図を示
し、第2図はその一部斜視断面図であり、更に第3図は
同側断面図である。Fig. W44 shows an external view of an image display device to which the present invention is applied, Fig. 2 is a partial perspective sectional view thereof, and Fig. 3 is a sectional view of the same side.
図においてlは外装カバー、2は外装カバーの前面に設
けられた透明の表示ガラス、3はカバーの前面突出部に
設けられた操作パネルで1画像情報の呼び出し、表示装
置の指示等の画像処理を行なう。In the figure, l is the exterior cover, 2 is the transparent display glass provided on the front of the exterior cover, and 3 is the operation panel provided on the front protrusion of the cover. Do the following.
外装カバ−1の内部には画像形成部が内蔵されている。An image forming section is built inside the exterior cover 1.
この画像形成部は、駆動ローラ4、支持ローラ5.6.
7これらのローラにより張架された像担持体であるベル
ト状感光体8、この感光体8の内部に設けられた半導体
レーザ発振器9、レーザの走査装置であるスキャナー1
0.fθレンズ11、ミラー12などの潜像書き込みの
ための光学系、及び露光部で感光体8の外部に設けられ
た現像器13等により構成されている。This image forming section includes a drive roller 4, support rollers 5, 6, .
7 A belt-shaped photoreceptor 8 which is an image carrier stretched by these rollers, a semiconductor laser oscillator 9 provided inside this photoreceptor 8, and a scanner 1 which is a laser scanning device.
0. It is composed of an optical system for writing a latent image such as an fθ lens 11 and a mirror 12, and a developing device 13 provided outside the photoreceptor 8 in an exposure section.
駆動ローラ4の後端軸にはモータ(不図示)が連結され
、ベルト状感光体8の搬送を行なう。A motor (not shown) is connected to the rear end shaft of the drive roller 4 to transport the belt-shaped photoreceptor 8.
また支持ローラ5,6.7のうち少なくとも一本(図示
の例では支持ローラ5が好ましい)は。Also, at least one of the support rollers 5, 6.7 (support roller 5 is preferred in the illustrated example).
その径方向移動可能で、かつばねなどにより感光体8に
所定の張力を付与して波打ち、たるみ及び感光体8と駆
動ローラ4のスリップなどを防止するためのテンション
を与えるように構成している。It is movable in the radial direction and is configured to apply a predetermined tension to the photoreceptor 8 using a spring or the like to prevent waving, sagging, and slipping between the photoreceptor 8 and the drive roller 4. .
なお、上記ベルト状感光体8は、例えば透明なポリエス
テルシートの片面(本例の構成では張設軌道の外側面)
に、導電性金属を極〈薄く蒸着し、更にその表面にCd
S等の感光物質を塗布することによって形成されるもの
である。The belt-shaped photoreceptor 8 is made of, for example, one side of a transparent polyester sheet (in the configuration of this example, the outer side of the stretched track).
A conductive metal is deposited very thinly on the surface, and Cd is then deposited on the surface.
It is formed by applying a photosensitive material such as S.
またミラー12を経て感光体8に照射されたレーザ光に
よりベルト状感光体8に潜像を形成する露光部には、こ
の露光部の感光体8の内面に接するように、支持ローラ
6.7の共通接線より若干突出した位置に、保護ガラス
14を設けてあり、この保護ガラス14は現像器13の
現像ブラシ(マグネットにより形成される現像剤のブラ
シ状の穂立)の接触により引き起される感光体8の上下
振動を防止し、露光位置を一定に保持して解像力を向上
させるためのものである。Further, in the exposure section where a latent image is formed on the belt-shaped photoconductor 8 by the laser beam irradiated onto the photoconductor 8 through the mirror 12, a support roller 6.7 is provided so as to be in contact with the inner surface of the photoconductor 8 in the exposure section. A protective glass 14 is provided at a position slightly protruding from the common tangent line, and this protective glass 14 is raised by contact with the developing brush (brush-like spikes of developer formed by a magnet) of the developing device 13. This is to prevent vertical vibration of the photoreceptor 8 and maintain the exposure position constant to improve resolution.
以上の構成において、半導体レーザ発振器9から画像電
気信号により変調されたレーザ光が出ると、このレーザ
光はスキャナー10.fθレンズ11.ミラー12を経
て露光部の感光体8に照射され、この感光体8の走行回
動に伴なって所定の画像が現像器13によって顕画され
る。In the above configuration, when a laser beam modulated by an image electric signal is emitted from the semiconductor laser oscillator 9, this laser beam is transmitted to the scanner 10. fθ lens 11. The light is irradiated onto the photoreceptor 8 in the exposure section through the mirror 12, and as the photoreceptor 8 travels and rotates, a predetermined image is developed by the developer 13.
ベルト状感光体8の外周面に形成された画像は、感光体
8が矢印A方向に移動するのに伴ない表示ガラスに対向
する位置まで運ばれ、一時的に停止して表示に供される
。その後、表示を終了した画像は感光体8の移動により
再び露光部に送られ、現像ブラシでクリーニングを受け
た直後に改めて露光、現像の各プロセスを経て新しい画
像が形成される。As the photoreceptor 8 moves in the direction of arrow A, the image formed on the outer peripheral surface of the belt-shaped photoreceptor 8 is carried to a position facing the display glass, and is temporarily stopped for display. . Thereafter, the image that has been displayed is sent to the exposure section again by the movement of the photoreceptor 8, and immediately after being cleaned by a developing brush, a new image is formed through the exposure and development processes.
上記画像表示装置における像形成プロセスは、本願出願
人による特開昭58−98746号公報又は特開昭58
−98748号公報に開示されたものを使用でき、ここ
では説明を省略する。The image forming process in the above-mentioned image display device is disclosed in Japanese Patent Application Laid-open No. 58-98746 or Japanese Patent Application Laid-Open No. 58-58 by the applicant of the present application.
The one disclosed in Japanese Patent No.-98748 can be used, and the description thereof will be omitted here.
以上の構成を持つ装置に適用する本発明の防塵装置を第
1図と第5図を用いて説明する。The dustproof device of the present invention applied to the device having the above configuration will be explained with reference to FIGS. 1 and 5.
第1図は像担持ベルトである感光体8周辺の断面側視図
であり、第5図はローラ4および7近傍の斜視図である
0図において感光体8に対して、各ローラ4,5,6.
7間に渡り平面な部分の内面と対向する位置にそれぞれ
前内カバー15、下内カバー16、後内カバー17およ
び下内カバー18が配置され、各カバーはローラの内側
で接続されている。そして、例えば前内カバー15は、
第5図に示す如く感光体8の内面全幅を覆っており、そ
の側部は側板19,20に固定されている。他の内カバ
ー16.17.18も前内カバー15と同様に側板間に
渡り固定されている。また下内カバー18にはレーザ光
りの光路上にスリブ)21が第1図の紙面と垂直方向に
開口し、下面に前述の保護ガラス14が設けられている
。そして、更に各内カバー15.16゜17の外面には
例えばテフロンフェルトやスポンジ等の柔軟性が有り、
且つ高い耐摩耗性と通気性を有する弾性部材22が像担
持ベルト8の内面に対向する位置に接着されており、こ
の弾性部材22は、像担持ベルト8の内面と軽く接触し
ている。1 is a cross-sectional side view of the vicinity of the photoreceptor 8, which is an image bearing belt, and FIG. 5 is a perspective view of the vicinity of the rollers 4 and 7. ,6.
A front inner cover 15, a lower inner cover 16, a rear inner cover 17, and a lower inner cover 18 are respectively arranged at positions facing the inner surface of the flat portion across the 7 spaces, and each cover is connected on the inside of the roller. For example, the front inner cover 15 is
As shown in FIG. 5, it covers the entire inner width of the photoreceptor 8, and its side portions are fixed to side plates 19 and 20. The other inner covers 16, 17, and 18 are also fixed across the side plates in the same manner as the front inner cover 15. Further, in the lower inner cover 18, a sleeve 21 is opened on the optical path of the laser beam in a direction perpendicular to the paper plane of FIG. 1, and the above-mentioned protective glass 14 is provided on the lower surface. Furthermore, the outer surface of each inner cover 15.16°17 is made of flexible material such as Teflon felt or sponge.
An elastic member 22 having high abrasion resistance and air permeability is bonded to a position facing the inner surface of the image carrying belt 8, and this elastic member 22 is in light contact with the inner surface of the image carrying belt 8.
一方、各内カバー15.16.17と弾性部材22には
共通の孔23が複数設けられている。On the other hand, a plurality of common holes 23 are provided in each inner cover 15, 16, 17 and the elastic member 22.
この孔は弾性部材22が十分な通気性を有する場合は各
内カバーに設けるだけでよい、また。This hole may only be provided in each inner cover if the elastic member 22 has sufficient air permeability.
各内カバーの各支持ローラに対向する位置にも孔(不図
示)が設けである。A hole (not shown) is also provided in each inner cover at a position facing each support roller.
さらに、側板20には機外の空気をフィルター(不図示
)を通して吸引するためのファン24が設けてあり、側
板19には排気孔25が設けである。排気孔25は内カ
バー15.16.17と側板19,20で囲われた空間
内の気圧を高めるため、ファン24を取り付けた吸引孔
よりも小さく、必要に応じてフィルター等の空気流の抵
抗になるものを取り付ける。Further, the side plate 20 is provided with a fan 24 for sucking air outside the machine through a filter (not shown), and the side plate 19 is provided with an exhaust hole 25. The exhaust hole 25 is smaller than the suction hole to which the fan 24 is attached in order to increase the air pressure in the space surrounded by the inner cover 15, 16, 17 and the side plates 19, 20, and if necessary, the air flow resistance such as a filter may be used. Attach something that will work.
(発明の効果)
上記実施例の説明から明らかなように、本発明の防塵手
段は内カバーと側板で囲われた空間内の気圧を外部より
も高めたものであるから、内カバーと内カバー、あるい
は内カバーと側板の接続部などに生ずる小さな隙間から
密閉空間内に侵入するトナーやホコリなどの異物を完全
に阻止できる。(Effects of the Invention) As is clear from the description of the above embodiments, the dustproof means of the present invention is such that the air pressure inside the space surrounded by the inner cover and the side plate is higher than that outside. Alternatively, it is possible to completely prevent foreign substances such as toner and dust from entering the sealed space through a small gap formed at the connection between the inner cover and the side plate.
また、内カバーと側板で形成された密閉空間内の気圧の
高い空気は孔23あるいは通気性の弾性部材22を通し
て、ベルト8の内面に第6図で示すような中心部から側
縁部に向かう空気流26を作ることにより、ベルトの内
面に回り込むトナーやホコリなどの異物の侵入を完全に
防ぐことができる。In addition, the high-pressure air in the sealed space formed by the inner cover and the side plate passes through the hole 23 or the breathable elastic member 22 and flows toward the inner surface of the belt 8 from the center to the side edge as shown in FIG. By creating the air flow 26, it is possible to completely prevent foreign matter such as toner and dust from entering the inner surface of the belt.
第1図は本発明の感光体8周辺の断面側視図、第2図は
同装置の一部断面斜視図、第3図は同装置の断面側視図
、144図は本発明を適用した画像表示装置の外観斜視
図、第5図はローラ4゜7近傍の斜視図、第6図は内カ
バー15の横断面図を示す。
図において、
4.5,6.7−−−ローラ。
8−m−像担持ベルトである感光体、
9−m−半導体レーザ発振器、
10−−−スキャナー、13−m−現像器、14−m−
保護ガラス、15−一一前内カバー。
16−−−上内カバー、17−−−後内カバー、18−
一一下内カバー、L9,20−m−側板。
21−m−スリット、22−m−弾性部材。
23−−一孔、24−−−吸引フアン。
25−m=排気孔、26−−−空気流を示す。FIG. 1 is a cross-sectional side view of the vicinity of the photoreceptor 8 of the present invention, FIG. 2 is a partial cross-sectional perspective view of the same device, FIG. 3 is a cross-sectional side view of the same device, and FIG. 5 is a perspective view of the vicinity of the roller 4.degree. 7, and FIG. 6 is a cross-sectional view of the inner cover 15. In the figure, 4.5, 6.7 --- rollers. 8-m-Photoreceptor which is an image bearing belt, 9-m-Semiconductor laser oscillator, 10--Scanner, 13-m-Developer, 14-m-
Protective glass, 15-11 front inner cover. 16--Top inner cover, 17--Rear inner cover, 18-
11 Lower inner cover, L9, 20-m-side plate. 21-m-slit, 22-m-elastic member. 23--One hole, 24--Suction fan. 25-m=exhaust hole, 26--indicates air flow.
Claims (3)
自在にかけまわし、該感光ベルト上に静電写真法による
トナー像を形成するようにしてなる画像表示装置におい
て、 前記無端状感光ベルトの内側に少なくとも 一面が該無端状感光ベルトの周回軌道に沿う仕切板と側
板により密閉空間を形成し、該密閉空間内の気圧を前記
無端状感光ベルト外面の気圧よりも高くしたことを特徴
とする画像形成装置の防塵機構。(1) In an image display device in which an endlessly moving photosensitive belt is movably passed around a plurality of rollers and a toner image is formed by electrostatic photography on the photosensitive belt, the inner side of the endless photosensitive belt. an airtight space is formed by a partition plate and a side plate, at least one surface of which is along the orbit of the endless photosensitive belt, and the air pressure within the airtight space is higher than the air pressure at the outer surface of the endless photosensitive belt. Dust-proof mechanism for forming equipment.
の孔を設けたことを特徴とする特許請求の範囲第1項に
記載の画像形成装置の防塵機構。(2) A dustproof mechanism for an image forming apparatus according to claim 1, wherein a plurality of holes are provided on a surface of the partition plate facing the endless photosensitive belt.
ることを特徴とする特許請求の範囲第1項に記載の画像
形成装置の防塵機構。(3) A dustproof mechanism for an image forming apparatus according to claim 1, wherein an image exposure device is provided in the closed space.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59189056A JPS6167051A (en) | 1984-09-10 | 1984-09-10 | Dust protecting mechanism of image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59189056A JPS6167051A (en) | 1984-09-10 | 1984-09-10 | Dust protecting mechanism of image forming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6167051A true JPS6167051A (en) | 1986-04-07 |
Family
ID=16234546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59189056A Pending JPS6167051A (en) | 1984-09-10 | 1984-09-10 | Dust protecting mechanism of image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6167051A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5179412A (en) * | 1990-11-22 | 1993-01-12 | Hitachi Koki Co., Ltd. | Transfer unit for xerographic printing machine with constant ventilating interior |
JPH0525466U (en) * | 1991-03-01 | 1993-04-02 | 富士ゼロツクス株式会社 | Image forming apparatus such as electrophotographic copying machine |
EP1152301A2 (en) * | 2000-05-01 | 2001-11-07 | Xerox Corporation | Pressure compensation controller for copying device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6064932U (en) * | 1983-10-13 | 1985-05-08 | 株式会社リコー | Automatic document feeder |
JPS60144251A (en) * | 1983-12-28 | 1985-07-30 | Ricoh Co Ltd | Automatic original feeder |
-
1984
- 1984-09-10 JP JP59189056A patent/JPS6167051A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6064932U (en) * | 1983-10-13 | 1985-05-08 | 株式会社リコー | Automatic document feeder |
JPS60144251A (en) * | 1983-12-28 | 1985-07-30 | Ricoh Co Ltd | Automatic original feeder |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5179412A (en) * | 1990-11-22 | 1993-01-12 | Hitachi Koki Co., Ltd. | Transfer unit for xerographic printing machine with constant ventilating interior |
JPH0525466U (en) * | 1991-03-01 | 1993-04-02 | 富士ゼロツクス株式会社 | Image forming apparatus such as electrophotographic copying machine |
EP1152301A2 (en) * | 2000-05-01 | 2001-11-07 | Xerox Corporation | Pressure compensation controller for copying device |
EP1152301A3 (en) * | 2000-05-01 | 2003-01-15 | Xerox Corporation | Pressure compensation controller for copying device |
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